1 // Copyright (C) 2017 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <regex>
16 #include <set>
17 #include <string>
18 #include <vector>
19
20 namespace abi_util {
21
22 std::set<std::string> CollectAllExportedHeaders(
23 const std::vector<std::string> &exported_header_dirs);
24
25 class VersionScriptParser {
26 public:
27
28 enum LineScope {
29 global,
30 local,
31 };
32
33 VersionScriptParser(const std::string &version_script,
34 const std::string &arch,
35 const std::string &api);
36 bool Parse();
37
38 const std::set<std::string> &GetFunctions();
39
40 const std::set<std::string> &GetGlobVars();
41
42 const std::set<std::string> &GetFunctionRegexs();
43
44 const std::set<std::string> &GetGlobVarRegexs();
45
46 private:
47
48 bool ParseInnerBlock(std::ifstream &symbol_ifstream);
49
50 LineScope GetLineScope(std::string &line, LineScope scope);
51
52 bool ParseSymbolLine(const std::string &line);
53
54 bool SymbolInArchAndApiVersion(const std::string &line,
55 const std::string &arch, int api);
56
57 bool SymbolExported(const std::string &line, const std::string &arch,
58 int api);
59
60 int ApiStrToInt(const std::string &api);
61
62 void AddToVars(std::string &symbol);
63
64 void AddToFunctions(std::string &symbol);
65
66 private:
67 const std::string &version_script_;
68 const std::string &arch_;
69 std::set<std::string> functions_;
70 std::set<std::string> globvars_;
71 // Added to speed up version script parsing and linking.
72 std::set<std::string> function_regexs_;
73 std::set<std::string> globvar_regexs_;
74 int api_;
75 };
76
FindAndReplace(const std::string & candidate_str,const std::string & find_str,const std::string & replace_str)77 inline std::string FindAndReplace(const std::string &candidate_str,
78 const std::string &find_str,
79 const std::string &replace_str) {
80 // Find all matches of find_str in candidate_str and return a new string with
81 // all the matches replaced with replace_str
82 std::regex match_expr(find_str);
83 return std::regex_replace(candidate_str, match_expr, replace_str);
84 }
85
86 } // namespace abi_util
87